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MetabolomicsClostridium bolteae suppresses Enterobacteriaceae expansion and restores gut microbiome homeostasis via disrupting siderophore-mediated iron acquisition

Intestinal inflammation and the related gut microbiome dysbiosis are becoming prevalent worldwide. Overgrowth of Enterobacteriaceae exacerbates intestinal inflammation and gut microbiome dysbiosis. Enterobacteriaceae secrets siderophore to acquire iron and survive in the iron-limited gut. Therefo...

2026-01-03 | MTBLS13592 | MetaboLights
TranscriptomicsFunctional redundancy of iron acquisition systems is required for Proteus mirabilis pathogenesis during UTI
Proteus mirabilis is a primary cause of complicated urinary tract infections (UTI). Surprisingly, iron acquisition systems have been poorly characterized in this uropathogen despite the urinary tract being iron-limited. In this report the transcriptome of strain HI4320, cultured under iron limitat...
ORGANISM(S): Proteus mirabilis HI4320 
2010-09-09 | E-GEOD-18051 | biostudies-arrayexpress
MetabolomicsSpermine is an endogenous iron chelator that inhibits ferroptosis

Ferroptosis is an iron-dependent form of cell death driven by lipid peroxidation. Here, we identify spermine—a polyamine derived from spermidine—as an endogenous iron chelator that directly suppresses ferroptosis. Integrating metabolomics, stable isotope tracing, and biophysical studies of the in...

2025-11-11 | MTBLS13306 | MetaboLights
MetabolomicsIntracellular iron overload rewires HSC metabolism by impairing mitochondrial fitness
Iron is an essential element for several cellular processes and recent evidence highlighted its role in regulating the function of hematopoietic stem cells (HSCs). When in excess it reduces quiescence and self-renewal, however, whether and how iron influences HSC metabolism is still unknown. Here, w...
2024-12-04 | MTBLS11778 | MetaboLights
Models,MultiomicsIron acquisition and oxidative stress response in aspergillus fumigatus.
Aspergillus fumigatus is a ubiquitous airborne fungal pathogen that presents a life-threatening health risk to individuals with weakened immune systems. A. fumigatus pathogenicity depends on its ability to acquire iron from the host and to resist host-generated oxidative stress. Gaining a deeper und...
7926 | Cell Collective
MetabolomicsCitrate serves as a signal molecule to modulate carbon metabolism and iron homeostasis in Staphylococcus aureus

Pathogenic bacteria's metabolic adaptation for survival and proliferation within hosts is a crucial aspect of bacterial pathogenesis. Here, we demonstrate that citrate, the first intermediate of the tricarboxylic acid (TCA) cycle, plays a key role as a regulator of gene expression in Staphylococc...

2024-04-26 | MTBLS4276 | MetaboLights
TranscriptomicsBulk RNA-seq of the human malaria parasite Plasmodium falciparum 3D7 cultured under different iron conditions
Background: Host iron deficiency is protective against severe malaria as the human malaria parasite Plasmodium falciparum depends on free iron from its host to proliferate. Due to the absence of transferrin, ferritin, ferroportin, and a functional heme oxygenase, the parasite’s essential pathways of...
ORGANISM(S): Plasmodium falciparum 
2024-04-08 | E-MTAB-13411 | biostudies-arrayexpress
TranscriptomicsMR-1 gene expression profiles of iron response
Time-series transcriptional profiles of Shewanella oneidensis type strain MR-1 under iron depletion and repletion conditions. Iron homeostasis of Shewanella oneidensis, a gamma-proteobacterium possessing high iron content, is regulated by a global transcription factor Fur. However, knowledge is inco...
ORGANISM(S): Shewanella oneidensis MR-1 
2010-01-12 | E-GEOD-15334 | biostudies-arrayexpress
TranscriptomicsTranscriptional Response to Iron Limitation in Pelagibacter ubique
We investigated the gene expression responses of Candidatus Pelagibacter ubique cultures to iron limitation. Differential expression was observed for genes in iron acquisition and incorporation operons. SfuC in particular was 16 times higher in iron-limited cultures and encodes a periplasmic iron-bi...
ORGANISM(S): Candidatus Pelagibacter ubique HTCC1062 
2010-05-05 | E-GEOD-20962 | biostudies-arrayexpress
TranscriptomicsTranscriptional responses of Acinetobacter baumannii ATCC 17978 to limiting iron availability
A. baumannii ATCC 17978 cells were incubated under iron replete (mueller-hinton) and iron limiting (MH + 200 µM 2,2'-dipyridyl) conditions, total RNA was extracted when cultures reached OD600=0.7. The probes on the microarray cover all predicted open reading frames (at least 4 per ORF) and addition...
ORGANISM(S): Acinetobacter baumannii 
2013-10-18 | E-GEOD-24921 | biostudies-arrayexpress
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